<!-- 创建表格 -->
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <table border="1" 
         width="200px"
         height="200px"
         cellpadding="10px"
         cellspacing="1px"
         align="left">
         
        <thead>
            <tr>
                <th>姓名</th>
                <th>性别</th>
                <th>年龄</th>
            </tr> 
        </thead>

        <tbody>
            <tr>
                <td>haha</td>
                <td>男</td>
                <td>18</td>
            </tr>    
            <tr>
                <td>haha</td>
                <td>男</td>
                <td>20</td>
            </tr> 
            <tr>
                <td>haha</td>
                <td>女</td>
                <td>16</td>
            </tr>
        </tbody>
    </table>
</body>
</html>